Improvement inx h hemlmers for sewing-machines



UNITEDS'If-A-TES PATENT GFIIGE.

`DANIEL II.`-DAnBY`,oF MENDoN, AssIeNon 'ro IIIIiIsnLn` AND DAVID c.- oooK, `or oHIoAeo, ILLINOIS.

` lMPRovMENT INHEMMERS Fou sEwiNe-MACH|NE$.

Nature and ObjectsV cf thclowcnt'i'cm *.5 The natureof my inventionrelates to im- ""provements in ahemming. devicel attachedpto n presser-foot; and itconsistsin' thecombina- )tion and arrangementsof parts to be herein` `faftermore fully described i I ,Y Description of the Accompanying ,Drame/ing.

Figure 1 is a perspective view of my inven- Vftion seen from the side at which-the cloth enters. Fig. 2 is a bottom lview. Fig. 3 is a I perspectiveofthe main parts, with the defllf'ice for controlling the width of thel hem rek moved I n I I n GeneralDescription. l: A is the base, frame, or plate, to which the I other parts are attached. B is a standard, "i shown in positionv and formfor attaching `to n the presser-foot shank of a Singer sewing-man 1 chine. It may be made to attach to anyordinary sewing-machine, however.` C is a small "bar pivoted at one end of the post D, and at `lthe other end turned at a right angle, as

fjfshown, and formed into a tongue, c, projecting toward the standard B on the under side oi' j "the elevated part of the plate A. E is,` a small `;Iba`r, also pivotedon the post D, and'lying im- I` .Lmediately over the bar G,its forward end also turned inward at a right angle, andl carrying Ha scrollor spiral blade, e, which partly 'enciry I I`1`c1es the tongue c in such a manner as to turn n the cloth in passing through, asis usual with y Specification forming part of Letters Patent No. 115,282, dated May 30, 1871.

hemmers of the tongue and spiral class. F is a spring, `attached at one end to the post D, and at its other end curved downward to rest againstr the bars() and E. Gr is the hole through which the sewing-machine needle passes. H is a bar, slotted lengthwise, as

shown, the slot running on a guide, h, where.

it maybe held in any position desired by a set-screw, I. J is abar having a point, j, over which the outer edge of the fold is made in turning a hem. One end of the bar J is'attached, by a curved spring, K, as shown, to the adjacent end of the bar H. L is a curved guide projecting downward from the bar H, just a little distance therefrom, to aid inturning and Akeeping the outer edge ofthe hemu straight.'

The operation of my invention is deemed simple. By sliding the bar H on the guide h the distance between the curved guide L and the spiral e may be `adjusted and the width of hemturned be thus controlled, the spring K allowing the lower bar J to yield while thicker parts of the cloth are passing. It will also be seen that vcross-seams, Ste., passing through between the spiral e and tongue c, will bnot choke the machine, as the tongue and spiral can both yield, the spring F holding them in position.

The arms C and E, and spring F, bar J,

DANIEL n. l DARBY.

Witnesses `PLA'rT R. RIcHARDs, n J. J. TUNNICLIFF. 

